There are a few useful commands built in which give you a certain amount of control, but it’s not comprehensive. The main ones are:
-
Ctrl–W, r (i.e. hold CTRL, press W, release CTRL, press r) – which rotates the windows (The first window becomes the second one, the second one becomes the third one, etc.)
-
Ctrl–W, x – swap the current window with the next one
-
Ctrl–W, Shift–H – move this window to the far left
-
Ctrl–W, Shift–K – move this window to the top
(and similarly for Ctrl–W, Shift–J and Ctrl–W, Shift–L). See:
:help window-moving
for more information.